What will come in place of the question mark (?) in the series?3, 8, 18, 38, 78, ?
A. 148
B. 158
C. 156
D. 160
1 answer
Best answer
Answer: B. 158
Answer: (B) 158
Each term = previous × 2 + 2. 78 × 2 + 2 = 158.
Doubtly AI
· 27 Oct 2026
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